Exhaust cut-out



Patented Apr. `t3, 1927.

STATE PATENTE -OFfFlfCfrEr EMIL Nf. DNAvNa QF RICHMOND.. INDIANA! EXHAUST 'QUT-our. y

,origina application mea February 2, 1922, serial No. 533.576. Divided and this application inea April 2,3, 1923. semi- No., 633,878.

My present invention provides an extremely simple and highly efficient exhaust cut-out for internal combustion engines suoli as used on automobiles or motor-propelled vehicles, and is directed particularly to an improved connection between the exhaust pipe and cut-out casing.

To the above end, generally stated, the invention consists of the novel construction, and combinations of devices hereinafter described and defined in the claim.

So far `as the present invention is concerned, the valve or movable element of the cut-out may take various diiferent forms. The cut-out casing has one` or more sleeves into whichthe exhaust pipepis adapted to be telescoped, and the invention is directed to improved meansfor connecting the pipe and sleeve or sleeves of the cut-out casing in telescoped relation detachably but rigidly secured against axial separation and with a gas-tight jointk between the telescoped members.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout theseveral views.

Referring to the drawings:

Fig. 1 is aview chiefly in side elevation but with some parts broken away and with some parts sectioned illustrating the invention applied to connect an exhaust cutout to the sectionsof an exhaust pipe; and

Fig. 2 is a transverse vertical section on the line 2-2 of Fig. 1.

The vconstruction here illustrated is very `similar to that illustrated iii-the drawings of my pending application Serial Number 533,576, tiled of date February 2, 1922, and is incorporated in the present application, with certain modifications thereof, in compliance with the examiners request for division made in said prior application..

The construction' here illustratedl may be quite briefly described as` follows:

The numeral 10 indicates an exhaust pipe of an :internal combustion engine, which pipe has been sectioned `or cut, and its severed ends axially separated to form a gap. In this particular construction illustrated, this gap is spanned by a rectangularfyokedike cut-out casing 11 thatis open at top and bottom and provided with axially aligned sleeves 12 intowhich the severed ends of the exhaust pipe sections .are telescoped. The sleeves 12 are formed with segmental lugforming portions 15 that are offset outward of or beyond the sleeves proper, and the said sleeves `have enlarged interior bores for `the reception of the ends of the pipe sections and these bores are formed with internal annular shoulders 17 against which the ends of the pipe sections are closely engaged or l tightly pressed to form tight joints. -The lug-form1ng portion 15 is formed withparallel passages through which the threaded prongs of the U-bolts 14 are passed, and the` threaded ends of these bolts are provided with nuts 16. Pliable packing strips 13, of asbestos or the like, are tightly clamped by the bowed portions of the U-bolts against. the pipe sections and against the outer ends of the sleeves 12, thus forming gas-tight joints at the place of their application. Moreover, when the nuts 16 ofthe U-bolts are tightened, the inner ends of the pipe sections are tightly and closely held vagainst shoulders 17,' so that tight joints are formed at the two places noted, to prevent the escape of exhaust gases.

Moreover', it will be seen that the pipe sections, without being provided with threads or the like, are, by their telescoped engagement with the sleeves ofthe cut-out casing, Well anchored to the casing against angular or bending movements. Moreover, the clamping action of the U-bolts tightly seats the pipesections against the concave inner surfaces of the lug-forming portions 15,' thereby further securing thel pipe sections very rigidly but detacljiably to the casing.

The numeral 19 indicates a vertically movable cut`out valve mounted in the yoke-like casing 11 and providedjwith a deiiecting surface 20, which, when the valveis raised as shown in Fig. 1, defle'cts the exhaust gases downward. The body of thevvalve 19 is tubular, so that when it is lowered, it will register with the sleeves-12 and thereby carry the exhaust gasesfrom the one pipe section 10 to 'the other. The numeral 21 indicates a valve-lifting cable which, as shown, extends through the eye of a guide bracket 22 secured on one of the sleeves of the cut-out casing. The numeral 19a` indicates stopsapplied to the cut-out valve for limiting its upward and downward movements.

Vhat I claim is:

The combination with a valve casing hav ing axially spaced and aligned sleeves with segmental portions, of exhaust pipe sections telescoped into said sleeves, nut-equipped U- bolts applied to the segmental port-ions of said sleeves and clamping said pipe sections, a valve working in said casing between said U-bolts and movable from one position in which the exhaust gases will be passed through both of said U-bolts to another position in which the exhaust gases will be directed from said casing at a point between said U-bolts, said sleeves having stops preventing` said pipe sections from being telescoped completely through the same, and means located outward of said joints and cooperating with said U-bolts to form gastght joints between the pipe sections and sleeves.

In testimony whereof I aflix my signature.

EMIL R. DRAVER. 

